Cutter-bar for harvesting-machines.



PATENTED JUNE 2,

0- U TURNER. CUTTER BAR FOB. HARVESTING MACHINES.

APPLICATION FILED OCT. 4, 1907.

wit macaw g 'l OSCAR G. TURNER, OF HIAWATHA, KANSAS.

CUTTER-BAR FOR HARVESTING-MACHINES.

Specification of Letters Patent.

Patented June 2, 1908.

Application filed October 4, 1907. .Serial No. 395,946.

To all whom it may concern:

Be it known that I, OSCAR C. TURNER, a citizen of the United States,residing at Hiawatha, in the county of Brown and State of Kansas, haveinvented a new and useful Cutter Bar for Harvesting Machines, of whichthe following is a specification.

This invention relates to cutter bars for mowing and harvestingmachines, and the like, and has for its object to provide a simple andeffective means for securing the ledger-plates to guard fingersof'mowing and harvesting machines in such a manner that while maderemovable for the purpose of sharpening and repairs, they will be heldrigidly in their seats when the machine is in action.

With this and other objects in view, the invention comprises the variousnovel features of construction and arrangement of parts, to behereinafter more fully described, and pointed out particularly in theappended claims.

In the accompanying drawings :Figure 1 is a plan view of a portion of acutter-bar for mowing and harvesting machines, portions of the samebeing broken away to more clearly illustrate the invention. Fig. 2 is aside view of one of the guard fingers showing the invention applied,portions of this figure being in section. Fig. 3 is a cross section ofone of the guard fingers on the line 33 of Fig. 1. Fig. 4 is a crosssection of the outer shoe on the line 4'4 of Fig. 1. Fig. 5 is aperspective view of one end of the ledgerplate bar. Fig. 6 is a crosssectional view on the line 66 of Fig. 1. Fig. 7 is a top plan view of aguard finger'partly broken away.

Corresponding parts in the several figures are indicated throughout bysimilar characters of reference.

The numeral 1 indicates the finger-bar of a mowing or harvesting machineon which the guard fin ers 2 are rigidly secured at their rear ends ybolts or rivets in the usual manner. As these guard fingers and theirappurtenances are alike, the description here after will be confined toone of them.

The guard finger 2 has the usual cover plate 3 below which is a slot 4for a ledger plate 5 and the movable knives 6. The forward end of therecess for the width of the guard finger has at its bottom an undercutrecess 7 a short distance in the rear of which is a transverse groove 8.Extending forwardly from said groove is a rectangular recess 9 disposedin the center line of the guard finger. The rear wall of the groove 8extends a short distance above the level of the floor of the slot 4 toform a rib 10 extending transversely of the guard finger.

The ledger late 5 of each guard finger is rivetedto a Far 11 whichextends the full length of the cutting mechanism and is prograss andgrain are cut.

Each end of the ledger-plate bar 11 has a rearward projection 15provided with a horizontal perforation 16 parallel with the said bar. Atthe outer end of the ledgerplate bar 11 the forward and rearwardprojections 12 and 15, respectively, are seated in de ressions formed inthe grain shoe 17 and he (1 there by a pin 18 seated in holes formed inthe shoe and in the hole 16 in the bar 11. A spring 19 surrounds the pinand by its contraction holds the pin in place.

The ledger-plate bar is placed in position by first inserting thetapered ends 13 of the ledger-plate into the undercut recesses 7 in theguard finger, after which the bar 11 is dropped into the grooves. 8 ofthe finger and the ugs 12 seat themselves in the recesses 9. The pin 18during this operation has been artly withdrawn from its seat, but afterthe edger-plate bar becomes seated the pin is loosened and is pulledinto its normal position by the spring 19. It will thus be seen that theledger-plates are securely fastened to the guard finger, the lateralmovement being revented by the lugs 12 which are seated in t e recesses9, vertical movement is restrained by the movable knives above them and,between the undercut recess, the rib 10 and the groove 8, all tendencyto forward and rearward movement is prevented.

From the above, it will be noted that the invention is simple, cheap andconvenient, all the ledger-plates being capable of a quick removal fromthe guard fingers for sharpening or repair and as quickly restored. Theledger-plate bar can be removed without mechanical skill and replaced byany person however ignorant of machine construction.

What is claimed is 1. A cutter bar for harvesting machines comprising afinger-plate, guard fingers attached thereto each having atransverseslot, the forward end of said slot having an undercut recess and thefloor thereof being provided with a transverse groove, and a forwardlyprojecting recess communicating therewith, a bar fitted into the groovesand having forwardly projecting lugs fitted into the forwardlyprojecting recesses of all the guard fingers, and ledger plates fastenedto said bar above said lugs and having their forward ends beveled to fitthe undercut recesses.

2. A cutter bar for harvesting machines comprising a finger-plate, guardfingers attached thereto each having a transverse slot, the forward endof said slot having an undercut recess and the floor thereof providedwith a transverse groove and a forwardly projecting recess communicatingtherewith, a rib projecting above the fioor of the slot at the rear ofsaid groove, a bar fitted into the rooves and having orwardly projectinglugs tted into the forwardly projecting recesses of all the guardfingers, and ledger-plates fastened to said bar above said lugs andhaving their forward ends beveled to fit the undercut recesses, andmeans at each end of the cutter bar for holding the ledger-plate bar inposition.

3. A cutter bar for harvesting machines comprising a finger plate, guardfingers attached thereto each having a transverse slot, said slot havingan undercut recess at its forward end and extending entirely across theguard finger, a transverse groove in the floor of the slot, and aforwardly projecting recess in the center line of the guard fingercommunicating therewith, a rib on the guard finger at the rear of saidslot, a bar fitted into the grooves and having forwardly projecting lugsfitting into the forwardly projecting recesses, and ledger-plates havingtheir forward ends beveled, and fastened to said bar above said lugs.

4. A cutter bar for harvesting machines comprising a finger plate, guardfingers attached thereto each having a transverse slot, a removable barhaving spaced forwardly projecting lugs, ledger-plates fastened to thebar and lugs, said bar and ledger-plates adapted to be inserted in thetransverse slots of the guard fingers, and a spring pin connection ateach end of the cutter bar for fastening said ledger-bar thereto.

In testimony that I claim the foregoing as my own, I have hereto afliXedmy signature in the presence of two witnesses.

OSCAR C. TURNER. Witnesses:

J. E. ToRBE'rT, FRANCES CosTELLo.

